1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef Patternist_XPathHelper_H
#define Patternist_XPathHelper_H
#include <private/qcommonnamespaces_p.h>
#include <private/qitem_p.h>
#include <private/qpatternistlocale_p.h>
#include <private/qreportcontext_p.h>
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short Contains helper and utility functions.
*
* The common denominator of its functions is that they do not fit in
* well elsewhere, such as in a particular class. It is preferred if XPathHelper
* goes away, and that functions are in more specific classes.
*
* @ingroup Patternist
* @author Frans Englich <frans.englich@nokia.com>
*/
class XPathHelper
{
public:
/**
* Determines whether @p qName is a valid QName. For example, "body" and "xhtml:body"
* is, but "xhtml::body" or "x:body "(note the whitespace) is not.
*
* @see QNameConstructor::expandQName()
* @see QNameValue
*/
static bool isQName(const QString &qName);
/**
* @short Splits @p qName into @p localName and @p prefix.
*
* @note @p qName must be a valid QName, and that is not checked.
*/
static void splitQName(const QString &qName, QString &prefix, QString &localName);
/**
* Determines whether @p ns is a reserved namespace.
*
* @see <a href="http://www.w3.org/TR/xslt20/#reserved-namespaces">XSL Transformations
* (XSLT) Version 2.0, 3.2 Reserved Namespaces</a>
* @see <a href="http://www.w3.org/TR/xquery/#FunctionDeclns">XQuery 1.0: An XML
* Query Language, 4.15 Function Declaration</a>
* @returns @c true if @p ns is a reserved namespace, otherwise @c false.
*/
static bool isReservedNamespace(const QXmlName::NamespaceCode ns);
/**
* Determines whether @p collation is a supported string collation. If it is
* not, error code @p code is raised via @p context.
*/
template<const ReportContext::ErrorCode code, typename TReportContext>
static inline void checkCollationSupport(const QString &collation,
const TReportContext &context,
const SourceLocationReflection *const r)
{
Q_ASSERT(context);
Q_ASSERT(r);
if(collation != QLatin1String(CommonNamespaces::UNICODE_COLLATION))
{
context->error(QtXmlPatterns::tr("Only the Unicode Codepoint "
"Collation is supported(%1). %2 is unsupported.")
.arg(formatURI(QLatin1String(CommonNamespaces::UNICODE_COLLATION)))
.arg(formatURI(collation)),
code, r);
}
}
static QPatternist::ItemTypePtr typeFromKind(const QXmlNodeModelIndex::NodeKind nodeKind);
/**
* Normalizes an @p uri by resolving it to the application directory if empty.
*/
static QUrl normalizeQueryURI(const QUrl &uri);
/**
* @short Determines whether @p consists only of whitespace. Characters
* considered whitespace are the ones for which QChar::isSpace() returns @c true for.
*
* For the empty string, @c true is returned.
*
* @returns @c true if @p string consists only of whitespace, otherwise @c false.
*/
static inline bool isWhitespaceOnly(const QStringRef &string)
{
const int len = string.length();
for(int i = 0; i < len; ++i)
{
if(!string.at(i).isSpace()) // TODO and this is wrong, see sdk/TODO
return false;
}
return true;
}
/**
* @overload
*/
static inline bool isWhitespaceOnly(const QString &string)
{
return isWhitespaceOnly(QStringRef(&string));
}
private:
/**
* @short This default constructor has no definition, in order to avoid
* instantiation, since it makes no sense to instantiate this class.
*/
inline XPathHelper();
Q_DISABLE_COPY(XPathHelper)
};
}
QT_END_NAMESPACE
#endif
|
